#header {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 999;
}

.header {
  position: relative;
}

.header-wrapper:not(.stuck)::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.4) 0%, rgba(0, 0, 0, 0.15) 35%, transparent 100%);
  pointer-events: none;
  z-index: 1;
}

.header-wrapper.stuck .header-bg-color {
  background-color: rgba(25, 25, 25, 0.3) !important;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: background-color 0.3s ease;
}

.header>* {
  position: relative;
  z-index: 2;
}

#top-bar {
  display: none !important;
}

#masthead {
  padding: 16px 60px;
  transition: padding 0.3s ease;
}

#logo img {
  max-height: 58px !important;
  width: auto !important;
  transition:
    max-height 0.3s ease,
    padding 0.3s ease;
}

.header-wrapper.stuck #masthead {
  padding-top: 8px;
  padding-bottom: 8px;
}

.header-wrapper.stuck #logo img {
  padding: 0 !important;
  max-width: 70px !important;
  width: auto !important;
}

/* ==========================================================================
   Header Modes: Solid Black vs Transparent Overlay
   ========================================================================== */

/* 1. Mặc định: Header Transparent (Phủ lên Hero Banner) */
.header-wrapper:not(.stuck) .header-bg-color,
.header-wrapper:not(.stuck) .header-bg-image {
  background: transparent !important;
}

.header-wrapper:not(.stuck) {
  box-shadow: none !important;
}


#masthead .header-nav-main>li>a {
  font-size: 14px;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  border: none !important;
  transition: opacity 0.3s ease;
}

.header-wrapper:not(.stuck) #masthead .header-nav-main>li>a {
  color: #ffffff !important;
  text-shadow:
    0 2px 8px rgba(0, 0, 0, 0.8),
    0 0 2px rgba(0, 0, 0, 0.4);
}

.header-wrapper.stuck #masthead .header-nav-main>li>a {
  color: #fff !important;
  text-shadow: none;
}

#masthead .header-nav-main>li>a:hover {
  opacity: 0.7;
  background-color: transparent !important;
}

#masthead .header-nav-main>li>a::before,
#masthead .header-nav-main>li>a::after {
  display: none !important;
}

#masthead .header-nav-main>li>a {
  position: relative;
}

#masthead .header-nav-main>li>a {
  background-image: linear-gradient(currentColor, currentColor);
  background-position: 50% calc(50% + 25px);
  background-repeat: no-repeat;
  background-size: 0% 1px;
  transition:
    background-size 0.4s cubic-bezier(0.25, 0.8, 0.25, 1),
    color 0.3s ease,
    opacity 0.3s ease !important;
}

#masthead .header-nav-main>li.active>a,
#masthead .header-nav-main>li.current-menu-item>a,
#masthead .header-nav-main>li.current-menu-parent>a,
#masthead .header-nav-main>li.current_page_parent>a,
#masthead .header-nav-main>li.current-menu-ancestor>a {
  background-size: 100px 1px;
  opacity: 1;
}

#masthead .header-nav-main>li>a:hover {
  background-size: 100px 1px;
  opacity: 0.8;
}

/* ==========================================================================
   Navigation Dropdown Menu (Sub-menu styling)
   ========================================================================== */

#masthead .nav-dropdown {
  background-color: rgba(26, 26, 26, 0.98) !important;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(255, 255, 255, 0.12) !important;
  border-radius: 4px;
  box-shadow: 0 14px 35px rgba(0, 0, 0, 0.45) !important;
  min-width: 250px !important;
  padding: 8px 0 !important;
}

/* Triệt tiêu mũi tên nhọn mặc định để dropdown phẳng và hiện đại */
.nav-dropdown-has-arrow #masthead li.has-dropdown:after,
.nav-dropdown-has-arrow #masthead li.has-dropdown:before,
#masthead .nav-dropdown:before,
#masthead .nav-dropdown:after {
  display: none !important;
}

#masthead .nav-dropdown>li {
  margin: 0 !important;
  padding: 0 !important;
}

#masthead .nav-dropdown>li>a {
  color: rgba(255, 255, 255, 0.85) !important;
  font-family: 'Montserrat', sans-serif !important;
  font-size: 13px !important;
  font-weight: 500 !important;
  letter-spacing: 1.5px !important;
  text-transform: uppercase !important;
  padding: 13px 24px !important;
  margin: 0 !important;
  border: none !important;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08) !important;
  transition: all 0.25s ease !important;
  display: flex !important;
  align-items: center !important;
  line-height: 1.4 !important;
  background-image: none !important;
}

#masthead .nav-dropdown>li:last-child>a {
  border-bottom: none !important;
}

#masthead .nav-dropdown>li>a:hover {
  color: #ffffff !important;
  background-color: rgba(255, 255, 255, 0.08) !important;
  padding-left: 28px !important;
  opacity: 1 !important;
}

@media (max-width: 859px) {
  #masthead {
    padding: 0 30px;
  }

  #masthead .icon-menu:before {
    color: #fff;
  }
}